Malicious PDF — malware analysis report

Static analysis result for SHA-256 4804ace3adbf2233…

MALICIOUS

PDF

18.5 KB Created: 2019-05-02 05:07:34 +01:00 Authoring application: mPDF 5.7
MD5: 289ba47cb86e482c06e989e4a093f713 SHA-1: 9e96eb95b98c82d2522e9b181bb00cc4b98dd9cb SHA-256: 4804ace3adbf22334e11ad7fdea038c55c3c70c756d05753f810b65ccee8cb5c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external websites, identified by the PDF_SEO_LINK_FARM heuristic. While the URLs themselves are currently marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, likely for SEO spam or to distribute further malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://muicuiu.dumb1.com/1a01a02a08a07a00/Rage-A-Love-Story-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/1a01a02a07a04a07/It-s-Our-Prom-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/3a01a07a03a00a01/Luna-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/1a01a02a07a00a05/grl2grl-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/3a06a00a06a09/Keeping-You-a-Secret-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/2a07a05a08a04/Define-quot-Normal-quot-by-Julie-Anne-Peters.pdf
    • http://muicuiu.dumb1.com/1a02a00a07a05/To-Love-a-Thief-by-Julie-Anne-Long.pdf
    • http://muicuiu.dumb1.com/1a06a01a03a08a04/Song-for-Jenny-A-Mother-s-Story-of-Love-and-Loss-by-Julie-Nicholson.pdf
    • http://muicuiu.dumb1.com/7a04a03a02a09a06/The-Blood-Countess-Erzsebet-B-thory-Of-Hungary-1560-1614-A-Gothic-Horror-Poem-Of-Violence-And-Rage-With-B-thory-A-Play-For-Single-Performer-by-Robert-Peters.pdf
    • http://muicuiu.dumb1.com/1a05a06a07a05a00/Married-to-Laughter-A-Love-Story-Featuring-Anne-Meara-by-Jerry-Stiller.pdf
    • http://muicuiu.dumb1.com/4a05a03a09a03/Our-Family-Tree-An-Evolution-Story-by-Lisa-Westberg-Peters.pdf
    • http://muicuiu.dumb1.com/4a04a01a09a08a03/The-Anne-Stories-Anne-of-Green-Gables-1-3-5-7-8-Story-Girl-1-2-by-L-M-Montgomery.pdf
    • http://muicuiu.dumb1.com/2a02a03a03a03a05/Die-for-Love-Jacqueline-Kirby-3-by-Elizabeth-Peters.pdf
    • http://muicuiu.dumb1.com/4a04a07a08a05a02/Abandoned-The-true-story-of-a-little-girl-who-didn-t-belong-by-Anya-Peters.pdf
    • http://muicuiu.dumb1.com/3a01a04a03a02a03/Cry-Silent-Tears-The-Horrific-True-Story-of-the-Mute-Little-Boy-in-the-Cellar-by-Joe-Peters.pdf
    • http://muicuiu.dumb1.com/1a08a09a05a05a03/The-People-Are-Going-to-Rise-Like-the-Waters-Upon-Your-Shore-A-Story-of-American-Rage-by-Jared-Yates-Sexton.pdf
    • http://muicuiu.dumb1.com/4a08a05a04a01a03/In-Place-of-Never-by-Julie-Anne-Lindsey.pdf
    • http://muicuiu.dumb1.com/4a08a05a06a03a05/Black-Is-the-Colour-of-My-True-Love-s-Heart-Felse-6-by-Ellis-Peters.pdf
    • http://muicuiu.dumb1.com/8a01a09a05a05a05/A-Beautiful-Pointe-by-Julie-Anne-Lindsey.pdf
    • http://muicuiu.dumb1.com/4a00a04a04a05a03/Demon-Soul-Untamed-1-by-Julie-Anne-Addicott.pdf
    • http://muicuiu.dumb1.com/7a04a03a02a09a06/The-Blood-Countess-Erzsebet-B-thory-Of-Hungary-1560-1614-A-Gothic-Horror-Poem-Of-Violence-And-R

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